- All sections
- H - Electricity
- H01M - Processes or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy
- H01M 50/409 - Separators, membranes or diaphragms characterised by the material
Patent holdings for IPC class H01M 50/409
Total number of patents in this class: 499
10-year publication summary
|
1
|
4
|
14
|
52
|
29
|
159
|
92
|
46
|
49
|
18
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Contemporary Amperex Technology Co., Limited | 7120 |
41 |
| LG Energy Solution, Ltd. | 15346 |
36 |
| Zeon Corporation | 4082 |
35 |
| Sanyo Electric Co., Ltd. | 3654 |
16 |
| Panasonic Intellectual Property Management Co., Ltd. | 31882 |
16 |
| Toray Industries, Inc. | 6978 |
14 |
| Asahi Kasei Kabushiki Kaisha | 2686 |
14 |
| NGK Insulators, Ltd. | 5046 |
13 |
| LG Chem, Ltd. | 17656 |
11 |
| Murata Manufacturing Co., Ltd. | 24741 |
11 |
| Samsung Electronics Co., Ltd. | 147622 |
9 |
| GS Yuasa International Ltd. | 2059 |
9 |
| Celgard, LLC | 315 |
8 |
| Ningde Amperex Technology Limited | 2180 |
8 |
| Daramic, LLC | 220 |
7 |
| Teijin Limited | 1256 |
7 |
| Toyota Motor Corporation | 32869 |
5 |
| Sumitomo Chemical Company, Limited | 9047 |
5 |
| Apple Inc. | 55446 |
4 |
| Samsung SDI Co., Ltd. | 8589 |
4 |
| Other owners | 226 |